Instagram Stories now has twice the number of users compared to Snapchat Stories, and six times the growth.

There's just one big problem: it seems no one realised they'd be outed every time they asked something.

Like it's done with its polls and sliders, Instagram doesn't show someone's name when you reply to their question. Instead it sneakily notifies you as to who exactly it is.

The feature initially drew comparisons with controversial sites like Ask.fm and Formspring where users could anonymously send each other queries and answers – again illustrating how little people knew about the truth behind the update.

And that's led to some gut-busting blunders and plenty of rage from users, according to Mashable.

Tell me why i thought the instagram “ask me a question” was anonymous and here i am asking people why they are ugly......

Others are urging Instagram to backtrack and make the feature anonymous so they can go about expressing their deepest, darkest desires.

For its part, the company did actually inform users that the feature reveals your identity in its blog post – which no one probably read.

"Though you’re able to see who submitted each response in your viewers list where it’s private, when you share that response in your story, your friend’s photo and username will not be shown," writes the firm.

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So let this be a warning, albeit a belated one – always read the small print.

Did you get caught out by Instagram's update? Share your funniest questions and responses in the comments section, if you're brave enough.

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